Polycystic Ovary Syndrome (PCOS) is a hormonal condition affecting around 10% of women in their reproductive years. The term polycystic ovary refers to a condition in which the ovaries develop a large number of tiny cysts (fluid-filled sacs).

Women with PCOS may have ovaries that produce too much androgen (male hormones). High levels of androgen interfere with ovulation, causing irregular menstruation, a common symptom of PCOS.

<em>It is important to know that some women with PCOS do not have polycystic ovaries, while others with cysts in the ovaries do not have the syndrome.</em>